Compensating gib for noiseless elevators



June 30, 1936. w SPULUES COMPENSATING GIB FOR NOISELESS ELEVATORS FiledJune 26, 1935 INVENTOR. W S'pull/es ATTORNEY.

Patented June 30, 1936 PATENT OFFICE COMPENSATING GIB FOR NOISELESSELEVATORS William Spullies Maywood, N. J.

Application June 26,

4 Claims.

The main object of this invention is to provide a compensating gib forhigh speed elevators. The vertical rails which guide elevators are madein piece lengths and are built into a building.

5 Due to settling of the building inaccuracies and shifting of the railsoccur and the shoes in which the gibs are mounted when passing thesejoints in the rails would vibrate and become noisy, were it not for thegibs. To limit this noise and make operation of a high speed elevatorquiet and easy in operation, I provided floating gibs within theconventional type of shoe used in elevator type of construction.

The above and other objects will become apparent in the descriptionbelow in which characters of reference refer to like-named parts in thedrawing.

Referring briefly to the drawing Figure 1 is a perspective view of anelevator shoe, showing the compensating gibs mounted therein-operationof the shoe is shown in cross section to illustrate the positions of thevarious gibs.

Figure 2 is a perspective view of one of the side positionedcompensating gibs.

Figure 3 is a perspective view of the transverse compensating gib.

Figure 4 is an end elevational view of the elevator shoe showingresilient means for urging the gib-s into contact with the rail, thelatter being shown in broken lines.

Referring in detail to the drawing the numerals I0 and II indicate theside walls of an elevator shoe. These side walls are joined by a basewall l2. The ends of the side walls are provided with bosses l3, forpurposes which will be more fully hereinafter described. At the ends ofthe shoe substantially triangular heads I4 and I 5, are mounted. Theseheads are secured in place by passing bolts l6, thru the heads. Saidbolts are adapted to threadably pass thru the bosses l3, of the shoestructure. Each head is provided with a recess H, in which transversekeys l8, are formed. The heads are provided with passageways l9, whichconform in size to the channel 20, in the shoe and align therewith. Thechannel and the recesses of the heads are adapted to receive a pair ofgibs such as illustrated in FigureZ, and a transverse gib? asillustrated in Figure 3. The longitudinal gibs used in pairs in eachshoe and illustrated in Figure 2, comprise a substantially long flatplate 2 I, over whose entire surface a plurality of openings 22, aredistributed. These openings are filled with some suitable soft metalsuch as white metal or babbitt or the like. These openings are 1935,Serial No. 28,441

formed on the wear side of the gibs indicated by the numeral 23. Thewear side of the gib which contacts with the elevator rail is perfectlyflat and is rounded at its ends 24. Opening at each end of the side gibsis a longitudinal keyway 25. These keyways are adapted to receive thekeys l8, of the heads l4 and l5. The gibs are constructed in such manneras to be capable of rocking within the channel 28, of the shoe. Thisrocking becomes a function by providing converging flat surfaces 26 and2?, at the center of the gib and the latter has its greatest dimensionat the center. On the inside of all of the gibs the chamber 28, isformed. This chamber is relatively large in proportion and receives somesuitable porous material such as cork which is cemented therein and actsas a cushion. Projecting from one long side of the side gibs 29 and 30,are a pair of spaced apart rectangular tongues 30 and; 32. These tonguesand their functions will again be mentioned later.

The transverse gib seated upon. the floor l2, of the shoe andillustrated in Figure 3, is of slightly diiferent construction. Thistransverse gib, comprises a bar 33, also provided with soft metal filledopenings 34, has a perfectly fiat upper surface 35, and a lower rockersurface in the same manner as the gibs illustrated in Figure 2. Byforming the lower surface of the bar 33, at an angle converging towardthe middle and tapering 01f toward the end as indicated by I thenumerals 36 and 31, a rocking gib is provided. On both sides of the bar33, at spaced apart positions lips 31, 38, and 39 are provided. Theselips 31, 3B, and 39, are so positioned and dimentioned that the lips 3|and 32, of the side gibs 29 and 30 will rise'between the lips and allowrocking movement independently of any of said gibs.

The heads l4 and I5, secured to the shoe structure l0 and H, areprovided with a pair of aligned holes 40 and 4|. At right angles tothese holes a third similar hole 42, is formed in the heads. The exitends of all of these holes are provided with threaded portions in whichis engaged a screw 43, preferably provided with a fiat sided head 44.These screws are adapted to retain curl springs 45, in place in each ofthe openings. The outer ends of these curl springs rest upon the rockersurface of the cooperating gibs and are adapted to urge these gibs intoyieldable contact with the web 46, of the guide rail 41.

The shoes such as illustrated in Figure 1, are used in. multiple unitson an elevator car generally capable of reciprocating travel in avertical direction. These shoes are provided with a trunnioned spindle48, which projects from member I2, centrally of the shoe. By mountingthis spindle in a suitable bracket in the elevator car, the shoe iscapable of axial adjustment. Adjoining rails in the well or shaft of anelevator may be perfectly aligned when the building in which theelevator is installed is erected. Owing to the settling of the buildingand temperature changes and many other factors, the adjoining railsbecome somewhat disaligned, and when the shoe passes over the bolt jointof two adjoining rails a noise ensues. To eliminate this and compensatefor the variations and irregularities in the guide rails the shoe isprovided with substantially floating gibs. These gibs in a single shoeare three in number. Two side gibs 29 and 30, are contacted with theopposing surface of the web 46, of the guide rail and a singletransverse gib 33, which contacts with the end. of the web 46. In theupward path of the moving elevator when a rise is encountered therounded ends 24, of the side gibs 29 and 30, register on theirregularities and the side gibs are rocked away from the obstructiveportion against the tension of the springs 45. The openings in the gibsare filled with the soft metal which is adapted to glaze the surface ofthe guide rails and serve as a lubricant for quiet operation of theelevator. It is readily apparent therefor that when an obstructive riseis encountered on the ends or side of the rail the gib will be deflectedagainst the tension of its supporting spring with a bufling andcushioning effect and quiet operation is therefore entirely possible.The keys l8, in the heads l4 and 15 which register in the keyways 25,are adapted to retain the side gibs in retained position.

It is to be noted that certain changes in form and construction may bemade without departing from the spirit and scope of the invention.

I claim:

1. In combination with a guide rail, a trunnioned elevator shoe, achannel in said shoe, gibs positioned in said shoe adapted to contactwith said guide rail, said gibs having a flat contacting surface, saidgibs having angular surfaces converging toward the middle on one side,said gibs being adapted to function in rocking motion, means for lockingsaid gibs in place in said shoe and resilient means for projecting saidgibs into contact with said guide rail.

2. In combination with a guide rail, a trunnioned elevator shoe, achannel in said shoe, gibs positioned in said shoe adapted to contactwith said guide rail, said gibs having a flat contacting surface, saidgibs having angular surfaces converging toward the middle on one side,said gibs being adapted to function in rocking motion, and heads securedto said shoe, keys formed in said heads and means on said gibscooperating with said keys and being adapted to retain said gibs inplace in said shoe.

3. In combination with a guide rail, a trunnioned elevator shoe, achannelin said shoe, gibs positioned in said shoe adapted to contactwith said guide rail, said gibs having a flat contacting surface, saidgibs having angular surfaces converging toward the middle on one side,said gibs being adapted to function in rocking motion, and heads securedto said shoe, keys formed in said heads and said gibs having keywaysreceiving said keys in said heads, and resilient means engaging saidgibs for urging the latter into contact with said guide rail.

4. In combination with a guide rail, a trunnioned elevator shoe, achannel in said shoe, gibs positioned in said shoe adapted to contactwith said guide rail, said gibs having a flat contacting surface, saidgibs having angular surfaces converging toward the middle on one side,said gibs being adapted to function in rocking motion, and heads securedto said shoe, keys formed in said heads and said gibs having keywaysreceiving said keys in said heads, curl springs in said heads engagingsaid gibs for urging the latter into riding contact with said guiderail, means for retaining said curl springs in said heads and means forinterlocking said gibs to prevent longitudinal shifting.

WILLIAM SPULLIES.

